The single object visualization most often is performed on a clear white background. It is difficult to achieve this through the common configuring the scene – increasing the illumination of the scene “lights up” the object, decreasing – the background becomes gray instead of white. If the object itself can be simply rendered on a transparent background and then imposed on white, but what about its reflections?
Let’s consider the way how we can render the object and its reflection on a white background.
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Sometimes it is necessary to create a render of an object with shadows on a transparent background. This occurs when you need to realistically embed a 3D into the photo or when creating an image to use it as a sprite in a computer game.
There is no special shader in Blender, like “Shadow catcher” in 3D Studio Max, which remains transparent display shadows. However, it is possible to achieve the desired result.
Let’s consider how we can get a shadow render on a transparent background using Blender:
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